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Finding the Fourth Proportional to 949.97, 1,311.56 and 596.37

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Solution

The fourth proportional to 949.97, 1,311.56 and 596.37 is: 823.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    949.97 : 1,311.56 = 596.37 : x
  2. Step 2: Convert to fraction form
    949.97/1,311.56 = 596.37/x
  3. Step 3: Cross multiply
    949.97x = 1,311.56 × 596.37
  4. Step 4: Simplify right side
    949.97x = 782,176.53
  5. Step 5: Solve for x
    x = 782,176.53/949.97
  6. Step 6: Final answer
    x = 823.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.